Tengu manifests as a supernatural goblin-like entity distinguished by a long nose and a puce-colored face. Promotional film materials alternately label this being a "sorcerer." The character's core role involves encountering the protagonist engaged in a forest wrestling match against animals. Impressed by the protagonist's victory in this contest, Tengu offers a magical potion as a reward. Consuming this potion bestows physical strength equivalent to one hundred men. A critical condition governs this supernatural gift: the enhanced strength activates solely when the user performs actions to assist others, remaining inaccessible for self-serving purposes. Ingestion of the potion also triggers a visible physiological change, turning the drinker's skin a distinctive pinkish hue. The character does not reappear or demonstrate further involvement in subsequent narrative events.